Using the Q/V band Aldo Paraboni payload to validate future satellite systems: test campaign and preliminary results of the QV-LIFT project

Dr. Antonio Petrolino from MBI has presented at the AT-RASC in Gran Canaria the preliminary results of the Smart Gateway Management System algorithm defined in the QV-LIFT project. Two switching techniques have been proposed to mitigate the effects of rain attenuation in multi gateway high throughput satellite systems: gateway switching and soft diversity. Both algorithms have been implemented. The first algorithm assumes that in case of failure of a Return Link (the link connecting the user terminals to the Internet via the satellite) Gateway or a Forward Link (the link connecting the Internet to the user terminals via the satellite) Gateway a spare Gateway exists and can be configured with the same parameters of the vanishing Gateway. This operation is fully transparent for the user terminals since they continue using the same transmission and reception parameters. In the second scenario, instead no spare Return Link of Forward Link gateway exists. In this case the algorithm migrates terminals over an existing Forward Link or Return Link carrier. This implies a reconfiguration of the transmission or reception radio-frequency components at the user terminal side.

The first tests performed in lab environment demonstrated that in case of Gateway Switching it is possible to preserve service continuity and that in case of Soft Diversity the minor outage is only given by the time required by the user terminal to change the radio-frequency configuration.

Tests have been performed, using both algorithms, using rain estimate time series provided through the multisite time series synthesizer (MTS) implemented by CNIT. Next steps are the deployment of the machines into the teleports identified in the phase of project design and on-air tests using the Aldo Paraboni payload on Alphasat.

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QV-LIFT is a Horizon2020 Research & Innovation Action committed to increase the maturity level of key satellite communication technologies and to contribute to a more competitive positioning of SatCom European manufacturers in the marketplace.

Upcoming Events

Welcome to EuMW 2019 European Microwave Week 2019 takes place at the heart of the Ville Lumiere, Paris! Bringing industry and academia together, European Microwave Week 2019 is a six day event, including three cutting...

Space Communications, Navigation and Earth Observation Systems in the 5G Era The 25th Ka and Broadband Communications Conference will be held in Sorrento, Italy, from September 30th through October 2nd, 2019. The 25th Ka Conference technical...

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Acknowledgement

QV-LIFT project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 730104

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